Model Comparison

Gemini 2.5 Pro Preview 06-05 vs o3

Gemini 2.5 Pro Preview 06-05 shows notably better performance in the majority of benchmarks. Gemini 2.5 Pro Preview 06-05 is 1.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

Gemini 2.5 Pro Preview 06-05 outperforms in 5 benchmarks (Aider-Polyglot, AIME 2025, GPQA, Humanity's Last Exam, VideoMMMU), while o3 is better at 2 benchmarks (MMMU, SWE-Bench Verified).

Gemini 2.5 Pro Preview 06-05 shows notably better performance in the majority of benchmarks.

Mon Apr 20 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 2.5 Pro Preview 06-05 costs less

For input processing, Gemini 2.5 Pro Preview 06-05 ($1.25/1M tokens) is 1.6x cheaper than o3 ($2.00/1M tokens).

For output processing, Gemini 2.5 Pro Preview 06-05 ($10.00/1M tokens) is 1.3x more expensive than o3 ($8.00/1M tokens).

In conclusion, o3 is more expensive than Gemini 2.5 Pro Preview 06-05.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Apr 20 2026 • llm-stats.com
Google
Gemini 2.5 Pro Preview 06-05
Input tokens$1.25
Output tokens$10.00
Best providerGoogle
OpenAI
o3
Input tokens$2.00
Output tokens$8.00
Best providerOpenAI
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Context Window

Maximum input and output token capacity

Gemini 2.5 Pro Preview 06-05 accepts 1,048,576 input tokens compared to o3's 200,000 tokens. o3 can generate longer responses up to 100,000 tokens, while Gemini 2.5 Pro Preview 06-05 is limited to 65,535 tokens.

Google
Gemini 2.5 Pro Preview 06-05
Input1,048,576 tokens
Output65,535 tokens
OpenAI
o3
Input200,000 tokens
Output100,000 tokens
Mon Apr 20 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 2.5 Pro Preview 06-05 and o3 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 2.5 Pro Preview 06-05

Text
Images
Audio
Video

o3

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 2.5 Pro Preview 06-05

Proprietary

Closed source

o3

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 2.5 Pro Preview 06-05 was released on 2025-06-05, while o3 was released on 2025-04-16.

Gemini 2.5 Pro Preview 06-05 is 2 months newer than o3.

Gemini 2.5 Pro Preview 06-05

Jun 5, 2025

10 months ago

1mo newer
o3

Apr 16, 2025

1.0 years ago

Knowledge Cutoff

When training data ends

Gemini 2.5 Pro Preview 06-05 has a knowledge cutoff of 2025-01-31, while o3 has a cutoff of 2024-05-31.

Gemini 2.5 Pro Preview 06-05 has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to o3 (2024-05-31).

Gemini 2.5 Pro Preview 06-05

Jan 2025

8 mo newer
o3

May 2024

Provider Availability

Gemini 2.5 Pro Preview 06-05 is available from Google. o3 is available from OpenAI.

Gemini 2.5 Pro Preview 06-05

google logo
Google
Input Price:Input: $1.25/1MOutput Price:Output: $10.00/1M

o3

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Larger context window (1,048,576 tokens)
Less expensive input tokens
Higher Aider-Polyglot score (82.2% vs 81.3%)
Higher AIME 2025 score (88.0% vs 86.4%)
Higher GPQA score (86.4% vs 83.3%)
Higher Humanity's Last Exam score (21.6% vs 14.7%)
Higher VideoMMMU score (83.6% vs 83.3%)
OpenAI
Less expensive output tokens
Higher MMMU score (82.9% vs 82.0%)
Higher SWE-Bench Verified score (69.1% vs 67.2%)
GoogleGemini 2.5 Pro Preview 06-05
OpenAIo3
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 2.5 Pro Preview 06-05
OpenAI
o3

FAQ

Common questions about Gemini 2.5 Pro Preview 06-05 vs o3

Gemini 2.5 Pro Preview 06-05 shows notably better performance in the majority of benchmarks. Gemini 2.5 Pro Preview 06-05 is made by Google and o3 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Gemini 2.5 Pro Preview 06-05 scores Global-MMLU-Lite: 89.2%, AIME 2025: 88.0%, FACTS Grounding: 87.8%, GPQA: 86.4%, VideoMMMU: 83.6%. o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%.
Gemini 2.5 Pro Preview 06-05 is 1.6x cheaper for input tokens. Gemini 2.5 Pro Preview 06-05 costs $1.25/M input and $10.00/M output via google. o3 costs $2.00/M input and $8.00/M output via openai.
Gemini 2.5 Pro Preview 06-05 supports 1.0M tokens and o3 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (1.0M vs 200K), input pricing ($1.25 vs $2.00/M). See the full comparison above for benchmark-by-benchmark results.
Gemini 2.5 Pro Preview 06-05 is developed by Google and o3 is developed by OpenAI.